CHROMATOGRAPHIC HETEROGENEITY OF RABBIT SERUM AMYLASE

A chromatograph of normal rabbit serum shows three major peaks of amylase activity. Material associated with each peak differed in composition of serum protein, electrophoretic distribution of amylolytic activity, optimum pH for activity and Michaelis-Menten constants for starch hydrolysis. These data suggest but do not prove conclusively that normal rabbit serum contains at least three molecular forms of amylase.     

旱稻与水稻苗期的淀粉酶同功酶及其活性的研究

本文采用垂直板聚丙烯酰胺凝胶电泳法,测定了旱稻(秦爱),水稻(寒2)种子萌发及苗期不同部位的淀粉酶同功酶,还测定了不同时期胚乳的淀粉酶活性。结果表明:从种子萌发到三叶期,秦爱胚乳中淀粉酶同功酶的酶带数均比寒2多,少则多一条,多则多三条。相应时期胚乳中淀粉酶的活性均以秦爱为高,尤其是一叶一心期两者差异最明显。秦爱的α—淀粉酶活性比寒2的高3.0倍,(α+β)淀粉酶活性高15倍。相应时期秦爱的根、苗中淀粉酶同功酶与寒2的相似。     

鸡的淀粉酶同工酶研究进展

本文对鸡的淀粉酶同工酶的多态性、提纯和生化特性等方面的研究进行了综述。